Control method and device of modular multilevel converter
The invention discloses a control method and device for a modular multilevel converter, and belongs to the technical field of power electronics, and the method comprises the steps: marking all sub-modules on a bridge arm in sequence; measuring capacitance voltage and bridge arm current of each sub-m...
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| creator | TONG LUPENG ZHENG GENGZHE KANG YONG CHEN YU |
| description | The invention discloses a control method and device for a modular multilevel converter, and belongs to the technical field of power electronics, and the method comprises the steps: marking all sub-modules on a bridge arm in sequence; measuring capacitance voltage and bridge arm current of each sub-module; after being triggered by a synchronizing signal, converting all capacitor voltages into square wave signals with variable pulse width, wherein the pulse width of the square wave signal is directly proportional or inversely proportional to the capacitor voltage; recording the labels of the sub-modules according to the arrival time sequence of the rising edge or the falling edge of the square wave signal to obtain a label sequence Qseq; and distributing driving signals in a pre-generated driving signal queue Qd to each sub-module according to the Qseq based on the direction of the bridge arm current so as to obtain bridge arm driving signals, thereby realizing voltage-sharing control. According to the inventio |
| format | Patent |
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According to the inventio</description><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLB0zs8rKcrPUchNLcnIT1FIzEtRSEkty0xOVchPU8jNTynNSSxSyC3NKcnMSS1LzVFIzs8rSy0qSS3iYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GhsbGBgZmRmaOxsSoAQBQwy7V</recordid><startdate>20210824</startdate><enddate>20210824</enddate><creator>TONG LUPENG</creator><creator>ZHENG GENGZHE</creator><creator>KANG YONG</creator><creator>CHEN YU</creator><scope>EVB</scope></search><sort><creationdate>20210824</creationdate><title>Control method and device of modular multilevel converter</title><author>TONG LUPENG ; ZHENG GENGZHE ; KANG YONG ; CHEN YU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN113300626A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>TONG LUPENG</creatorcontrib><creatorcontrib>ZHENG GENGZHE</creatorcontrib><creatorcontrib>KANG YONG</creatorcontrib><creatorcontrib>CHEN YU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TONG LUPENG</au><au>ZHENG GENGZHE</au><au>KANG YONG</au><au>CHEN YU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Control method and device of modular multilevel converter</title><date>2021-08-24</date><risdate>2021</risdate><abstract>The invention discloses a control method and device for a modular multilevel converter, and belongs to the technical field of power electronics, and the method comprises the steps: marking all sub-modules on a bridge arm in sequence; measuring capacitance voltage and bridge arm current of each sub-module; after being triggered by a synchronizing signal, converting all capacitor voltages into square wave signals with variable pulse width, wherein the pulse width of the square wave signal is directly proportional or inversely proportional to the capacitor voltage; recording the labels of the sub-modules according to the arrival time sequence of the rising edge or the falling edge of the square wave signal to obtain a label sequence Qseq; and distributing driving signals in a pre-generated driving signal queue Qd to each sub-module according to the Qseq based on the direction of the bridge arm current so as to obtain bridge arm driving signals, thereby realizing voltage-sharing control. According to the inventio</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | Control method and device of modular multilevel converter |
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